JP6501541B2 - Crop shredding device - Google Patents

Description

  The present invention relates to a crop shredding device for harvesting and shredding tall crops such as corn.

  Conventionally, as an apparatus for harvesting and shredding crops such as corn, an apparatus as disclosed in the following patent documents has been proposed. The general structure of such an apparatus is described with reference to FIG.

  In FIG. 9, reference numeral 81 denotes a reaper, which cuts and harvests crops such as corn in the field. Reference numeral 82 denotes a transport unit 82 which supplies the crop cut by the reaper 81 to the shredding unit 84 side. The conveyance unit 82 is configured by providing a first conveyance roller unit 82a and a second conveyance roller unit 82b, and movable rollers of the first conveyance roller unit 82a and the second conveyance roller unit 82b according to the width of the crop. 83a and 83b can be retracted upward. On the other hand, reference numeral 84 denotes a shredding unit which can shred the crop supplied from the transport unit 82 into a predetermined length. In the shredding unit 84, a plurality of rotary blades are provided on the outer peripheral portion of the rotatable cylinder, and the crop is sandwiched between the shredder and the fixed blade to shred the crop into a predetermined length. Reference numeral 85 denotes a discharge unit, which discharges shredded crops from the opening provided at the axial end of the cylinder and discharges it to the shooter side by wind pressure.

JP, 2005-185244, A

  By the way, when carrying a crop with a wide bundling width using a conveyance part using such an apparatus, the following problems arise.

  That is, among such transport sections, the first transport roller section 82a is provided with a projection intermittently on the outer peripheral portion so as to be able to take in the cropped crop, while the second transport roller section As for 82b, it is preferable to make the outer peripheral part smooth in order to eliminate the gap with the downstream shredding part 84 and reduce the crop leakage. However, in the case of transporting a crop having a large bundle width in such a configuration, the movable roller 83a can be retracted upward in the first transport roller portion 82a to transport the crop, but this can be transported to the second transport roller portion 82b. At the time of delivery to the container, a slip occurs at the inlet portion of the second transport roller portion 82b having no projection, and the crop can not be stably supplied to the shredding portion 84. On the other hand, when the second transport roller portion 82b is provided with a projection, a gap is formed between the shredding portion 84 (in the direction of the arrow), and the crop enters the gap, and the shredding portion 84 is formed. It will not be supplied to

  Therefore, in order to solve the above-mentioned problems, the present invention enables the crop shredding to be stably transported when the cropped crop is transported to the shredding unit using a plurality of transport rollers. It aims at providing an apparatus.

That is, in order to solve the above problems, the present invention
A crop shredding device comprising: a harvesting section for harvesting crops; a transport section for transporting the crops harvested by the harvesting section; and a shredding section for shredding the crops transported by the transport section. The transport section is provided on the downstream side of the first transport roller section with a first transport roller section provided with a fixed roller and a variable roller for separating the transport gap width according to the thickness of the crop, Accordingly, when the conveyance gap width of the first conveyance roller unit is separated from the second conveyance roller unit including the fixed roller and the variable roller that separates the conveyance clearance width accordingly, the conveyance clearance width of the second conveyance roller unit And a first connecting member for rotating the variable roller of the first conveyance roller unit around the fixed roller of the second conveyance roller unit; Inside the fixed roller in the roller section And a link member for connecting the first connection member and the second connection member, the second connection member for rotating the variable roller of the second transfer roller portion, and the first connection member When the variable roller is rotated in the separating direction, the link member displaces the variable roller of the second conveyance roller portion in the separating direction by the second connecting member.

  Also, in such an invention, the link member and the first connecting member or the second link member are configured to reduce the transport gap width of the first transport roller portion in a state in which the transport gap width of the second transport roller portion is large. A long hole is provided in the connecting portion with the connecting member to connect the link member.

According to the present invention, even in the case of delivering a thick crop with a wide bundling width from the first transport roller portion to the second transport roller portion, the crop can be delivered smoothly and stably on the shredding portion side. It will be able to supply crops.

Schematic of crop shredding device showing an embodiment of the present invention Top view of reaper in same form The figure which shows the conveyance part and shredding part in the same form The figure which shows the interlocking mechanism of the conveyance part in the same form State diagram in which only the first conveyance roller unit of the conveyance unit in the same form is lowered Diagram showing the power of the transport unit in the same form Diagram showing the interlocking mechanism of the transport unit in another form Diagram showing the interlocking mechanism of the transport unit in another form Diagram showing a conventional example

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the crop shredding device 1 according to this embodiment has a reaper 2 that reaps the stock origin of a crop such as corn, and the crop cut by the reaper 2 in a horizontal state and on the downstream side. It comprises the conveyance part 3 (refer FIG. 3) to convey, and the shredding part 4 etc. which shreds the crop conveyed by this conveyance part 3 from a stock origin. And, characteristically, as shown in FIG. 3, when the conveyance gap width of the 1st conveyance roller part 31 in conveyance part 3 becomes large according to the bundling width of the crop which was cut off by mowing part 2, this In conjunction with the second transport roller portion 32 on the downstream side to increase the transport gap width, and when the crop is delivered to the second transport roller portion 32, the transport gap width of the first transport roller portion 31 To make it possible to pinch the next crop. Hereinafter, the present embodiment will be described in detail.

  First, as shown in FIG. 1 and FIG. 2, the reaper 2 is provided on the front side of the vehicle body, and is constituted by a pair of left and right drums 21. The drums 21 rotate inward to one another, and a plurality of blades 22 provided at the lower end of the outer peripheral portion of the respective drums 21 cut the crops so that the cut crops can be drawn inward. ing. An intermittent crop holding claw 23 is provided on the upper side of the outer peripheral portion of the blade 22 of the drum 21 so that the vicinity of the plant origin of the crop is sandwiched and drawn inside. Thus, when the crop is drawn inward, the crop hits the bar 24 provided on the upper side (see FIG. 1) of the drum 21 and the crop is drawn inward from the stock origin in a horizontal state.

  The transport unit 3 transports the crop cut by the harvesting unit 2 to the downstream shredding unit 4 in a horizontal state, and as shown in FIG. 3 and the like, the first transport roller unit here 31 and a second conveyance roller portion 32 are provided.

  Among them, the first conveyance roller portion 31 is configured to be provided with a lower fixed roller 31 b and an upper variable roller 31 a, and the crop is sandwiched in the conveyance gap width between these fixed roller 31 b and the variable roller 31 a. It is made to convey by. Intermittent projections are provided on the fixed roller 31b and the variable roller 31a in the axial direction of the outer peripheral surface so that the crop cut by the reaper 2 can be taken in reliably.

  On the other hand, like the first conveyance roller portion 31, the second conveyance roller portion 32 is provided with the upper fixed roller 32b and the lower variable roller 32a, and the second fixed roller 32b and the variable roller 32a are By sandwiching the crop in the transport gap width which is an interval, the crop sandwiched by the first transport roller portion 31 is transported in a horizontal state. Here, in the fixed roller 32b located on the downstream side in the rotational direction of the shredding unit 4 to be described later in the second conveyance roller unit 32, the outer peripheral surface is in a smooth state with no unevenness. That is, when the fixed roller 32b located on the downstream side in the rotation direction of the shredding portion 4 is provided with the unevenness, a gap for retracting the unevenness is formed, and the crop enters between the shredding portion 4 . Therefore, the fixed roller 32b provided on the downstream side in the rotational direction of the shredding unit 4 is kept smooth here, and the gap between the shredding unit 4 and the shredding unit 4 is reduced to ensure that the crop is shredded. It can be transported to the

  As shown in FIG. 3, the shredding unit 4 is configured to shred the crop transported in a horizontal state by the transport unit 3 at predetermined intervals. The shredding unit 4 is capable of sandwiching and shredding a crop between a plurality of rotary blades 43 provided on the outer peripheral portion of the cylinder 42 and a fixed blade 41 provided in the vicinity of the second conveyance roller unit 32. I have to. Further, the cylinder 42 is provided with a plurality of blades 44 for blowing up the shredded crop, and by rotating the cylinder 42, the shredded crop is blown up.

  The discharge unit 5 discharges the crop blown up by the cylinder 42 toward the rear of the vehicle body. The discharge unit 5 is configured to take in the crop from the inlet 51 provided above the fixed blade 41 of the shredding unit 4 by blowing up by rotation of the blade 44 of the cylinder 42 and discharge the crop therefrom. There is. The crop discharged in this manner is discharged into a roll forming chamber 6 (see FIG. 1) provided at the rear of the vehicle body. Here, the rear side of the vehicle body is configured by the roll forming chamber 6, but the rear side of the vehicle body may be a loading platform, and the shredded crops may be loaded there.

  In such a configuration, in this embodiment, the second conveyance is performed when the conveyance gap width of the first conveyance roller unit 31 in the conveyance unit 3 is increased according to the size of the bundle width of the cropped crop. While making the conveyance clearance width of the roller part 32 large and making it easy to deliver, when the crop moves to the 2nd conveyance roller part 32, the conveyance clearance width of the 1st conveyance roller part 31 is made small, and the next An interlocking mechanism 7 is provided so as to be capable of sandwiching the crop. The configuration and operation of the interlocking mechanism 7 will be described below with reference to FIGS. 4 to 5.

  First, the first conveyance roller unit 31 and the second conveyance roller unit 32 have fixed rollers 31 b and 32 b on one side, and variable rollers 31 a and 32 a on the side facing the fixed rollers 31 b and 32 b. Among the variable rollers 31a, the variable roller 31a on the side of the first conveyance roller portion 31 is rotated about the fixed roller 32b of the second conveyance roller portion 32 provided on the downstream side in the conveyance direction. It is supported by the connecting member 71 and can be retracted upward about the shaft. The lower variable roller 32a of the second conveyance roller unit 32 is supported by the second connecting member 72 connected to the fixed roller 31b of the first conveyance roller unit 31 adjacent to the upstream side in the conveyance direction. The variable roller 32a can be retracted downward about the shaft. The first connecting member 71 and the second connecting member 72 are applied with a force such that the width of the conveyance gap is reduced via the springs 71a and 72a, and the cropping is always performed by the force of the springs 71a and 72a. Is interposed between the fixed roller 31b and the variable roller 31a. Further, a link member 73 is provided between the first connection member 71 and the second connection member 72. The upper end side of the link member 73 is connected between the rotation shaft of the first connection member 71 and the variable roller 31 a, and the lower end side of the link member 73 is connected to the second connection member 72 via the elongated hole 74 or the pin 75. It is connected to the front side of the rotating shaft. In this long hole 74, the pin 75 with the second connection member 72 abuts on the lower edge in a state where the conveyance gap width of the first conveyance roller portion 31 is minimized, whereby the first connection member 71 The lower edge portion of the elongated hole 74 abuts against the pin 75 of the second connecting member 72 to rotate the second connecting member 72 when the upper end of the second connecting member 72 is lifted.

  The fixed roller 31b and the variable roller 31a of the first conveyance roller unit 31, and the fixed roller 32b and the variable roller of the second conveyance roller unit 32 are driven by a drive source as shown in FIG. In this drive mechanism, sprockets 310a, 310b, 320a and 320b are attached to the other end sides of the respective rollers 31a, 31b, 32a and 32b so that the chains 310, 311 and 312 can be passed around and rotated. It has become. When rotating the rollers 31a, 31b, 32a, 32b in this manner, the chain 310 is bridged between the drive sprocket 300 and the sprockets 310b, 320b of the fixed rollers 31b, 32b, and the drive sprocket 300 is rotated. The fixed rollers 31b and 32b are driven. In addition, the chains 311 and 312 are also bridged between the sprockets 310b and 320b of the fixed rollers 31b and 32b and the sprockets 310a and 320a of the variable rollers 31a and 32a adjacent to each other, thereby retracting the variable rollers 31a and 32a. It is made to be driven by

  The operation of the transport unit 3 and the interlocking mechanism 7 configured as described above will be described with reference to FIGS. 4 to 5.

  First, as shown in FIG. 4, when the crop is sandwiched between the first conveyance roller portion 31 (FIG. 4 (b)), the variable roller 31a of the first conveyance roller portion 31 resists the force of the spring 71a. Move up. At this time, along with the movement of the variable roller 31a, the first connecting member 71 is lifted upward around the fixed roller 31b of the second conveyance roller portion 32, and the link member 73 is lifted upward accordingly. Then, when the link member 73 is lifted in this manner, the second connecting member 72 is pivoted to the left by the pin 75 that abuts on the lower edge of the elongated hole 74. Then, along with this rotation, the variable roller 32 a of the second conveyance roller unit 32 attached to the tip end side of the second connection member 72 moves downward. That is, in conjunction with the upward movement of the variable roller 31a of the first conveyance roller unit 31, the variable roller 32a of the second conveyance roller unit 32 moves downward, the conveyance gap width increases, and the crop is smoothly produced. It can be delivered within the conveyance gap width of the second conveyance roller unit 32.

  When the crop is transported to the second transport roller unit 32 in this state (the state of FIG. 5), the variable roller 31a of the first transport roller unit 31 is pulled by the spring 71a and tends to move downward. At this time, since the long hole 74 of the link member 73 connected to the first connection member 71 is allowed to move downward, the force of the spring 71 a causes the link member 73 and the first connection member 71 to be on the lower side. You will be able to move it. By this, only the conveyance clearance width of the 1st conveyance roller part 31 can be made small, and the next crop can be pinched.

  Here, the long hole 74 of the link member 73 is provided on the lower end side to be connected to the second connection member 72, but the long hole 74 is provided on the upper side to be connected to the first connection member 71. You may

  That is, as shown in FIG. 7, the variable roller 31 a of the first conveyance roller unit 31 and the fixed roller 32 b of the second conveyance roller unit 32 are connected by the first connecting member 71, and the fixed roller 32 b of the second conveyance roller unit 32. Make it possible to rotate around the Similarly, the variable roller 32a of the second conveyance roller unit 32 and the fixed roller 31b of the first conveyance roller unit 31 are connected by the second connecting member 72, and the fixed roller 31b of the first conveyance roller unit 31 is connected. Make it possible to rotate around the center. Then, in this state, the first connecting member 71 and the second connecting member 72 are connected by the link member 73. At this time, the connecting portion between the first connecting member 71 and the link member 73 is connected by the elongated hole 74a via the pin 75a, and the conveying gap width of the first conveying roller portion 31 is small. In this state, the pin 75a is in contact with the upper edge of the long hole 74a (FIG. 7A). On the other hand, the connecting portion with the second connecting member 72 is connected to the side opposite to the rotation axis of the second connecting member 72 (the opposite side to the variable roller 32a side) as in the case of FIG.

  In such a state, when the variable roller 31a of the first conveyance roller unit 31 moves upward, the first connection member 71 is lifted accordingly. At this time, since the link member 73 is connected such that the pin 75a abuts on the upper edge of the long hole 74a, the link member 73 is lifted upward. Then, with the lifting of the link member 73, the second connection member 72 pivots downward about the fixed roller 31b of the first conveyance roller portion 31, and the conveyance gap width of the second conveyance roller portion 32 is increased. You will come to

  On the other hand, when the crop has moved to the second conveyance roller unit 32 (FIG. 7B), the variable roller 31a of the first conveyance roller unit 31 tries to move downward by the force of the spring 71a. At this time, the first connecting member 71 connected to the variable roller 31a is allowed to move downward within the range of the long hole 74a of the link member 73, whereby only the variable roller 31a of the first conveyance roller portion 31 is It can be moved down.

  Then, the crop conveyed in the horizontal state by the second conveyance roller unit 32 in this manner is conveyed to the shredding unit 4 (see FIG. 3), and the rotary blade 43 and the fixed blade 41 rotated from the bottom there. Sandwiched between and shredded. At this time, since the cylinder 42 of the shredding unit 4 is rotated at high speed, an upward air flow is generated by the blades 44 provided in the cylinder 42, and the shredded crop is discharged to the discharge unit 5 Ru. Then, the crop discharged in this manner is discharged to the roll forming chamber 6, where a cylindrical roll bale is formed.

Thus, according to the above embodiment,
Crop shredding comprising a reaper 2 for reaping crops, a transport portion 3 for transporting the crop cut by the reaper 2, and a shredding portion 4 for shredding the crop transported by the transport 3 In the apparatus 1, the first conveyance roller portion 31 including the fixed roller 31b and the variable roller 31a for separating the conveyance gap width according to the thickness of the crop according to the thickness of the crop, and the downstream of the first conveyance roller portion 31 The second conveyance roller portion 32 provided with the fixed roller 32b and the variable roller 32a which are provided on the side and separate the conveyance clearance width according to the thickness of the crop, and the conveyance clearance width of the first conveyance roller portion 31 is separated. And an interlocking mechanism 7 for interlockingly separating the transport gap width of the second transport roller portion 32 when the second transport roller portion 32 is separated . Possibility of conveyance roller section 31 A first connecting member 71 for rotating the roller 31a; a second connecting member 72 for rotating the variable roller 32a of the second transport roller portion 32 about the fixed roller 31b of the first transport roller portion 31; The link member 73 includes a link member 71 and a link member 73 for linking the second link member 72, and when the variable roller 31a of the first conveyance roller portion 31 is rotated by the first link member 71 in the separating direction, the link member Since the variable roller 32a of the second conveyance roller portion 32 is displaced in the separation direction by the second connection member 72 by means of 73 , the first conveyance roller portion 31 causes the second conveyance roller portion 32 to produce a thick bundle of bundling width. Even in the case of delivery, the crop can be delivered smoothly, and the shredded part 4 can be stably supplied with the crop.

  Further, the link member 73 and the first connection member 71 or the second connection member are configured to reduce the transfer clearance width of the first transfer roller portion 31 in a state where the transfer clearance width of the second transfer roller portion 32 is large. Since the long hole 74 is provided in the connection part with 72 and the link member 73 is connected, the conveyance gap width of the first conveyance roller portion 31 can be made small by the long hole 74, and the first structure is simple. Only the variable roller 31a of the conveyance roller unit 31 can be moved.

  The present invention is not limited to the above embodiment, and can be implemented in various aspects.

  For example, in the above embodiment, the interlocking mechanism 7 is configured using the first connecting member 71, the second connecting member 72, the link member 73, and the like, but the variable rollers 31a and 32a have other configurations. May be evacuated. As a method of such retraction, for example, as shown in FIG. 8, the respective variable rollers 31a and 32a are provided in the same direction and are connected by a T-shaped connecting member 91, and the connecting member 91 is Be able to move in the direction. Then, when one of the upstream variable rollers 31a retracts, the vertical member 92 constituting the T-shaped connecting member 91 is moved upward along the wall surface 93, whereby the downstream variable roller 31a is also moved. Evacuate upward. On the other hand, when the crop has moved to the downstream side (FIG. 8 (b), the vertical member 92 constituting the T-shaped connecting member 91 is inclined forward in the front space 94 of the wall surface 93). The side variable roller 31a may be moved downward.

  In the above embodiment, the crop is cut by the drum 21 rotating along the vertical axis, but the crop may be cut by another method and transported to the transport unit 3.

  Furthermore, in the above embodiment, the blade 44 is provided on the cylinder 42 as the shredding unit 4 to perform the blow-up, but the blow-up may be performed by another method.

  Further, in the above embodiment, one of the transport portions 3 is the variable roller 31a (32a), and the other is the fixed roller 31b (32b), but both may be variable rollers.

1 ... crop shredding device 2 ... reaper 21 ... drum 22 ... blade 23 ... claw 24 ... bar 3 ... transport section 31 ... first transport roller section 31 a ... Variable roller 31b · · · Fixed roller 32 · · · Second conveyance roller portion 32a · · · Variable roller 32b · · · Fixed roller 4 · · Shredding portion 41 · · · Fixed blade · · · · 43 ... rotary blade 44 ... blade 5 ... discharge part 51 ... inlet part 6 ... loading platform 7 ... interlocking mechanism 71 ... first connection member 71 a ... spring 72 ... · Second connecting member 72a · · · Spring 73 · · · Link member 74 · · · Long hole 75 · · · Pin

Claims (2)

A reaper for harvesting crops,
A transport unit for transporting the crop cut by the reaper;
A crop shredding device comprising a shredding unit for shredding the crop transported by the transport unit;
The transport unit is
A first conveying roller portion provided with a fixed roller and a variable roller for separating the conveying gap width according to the thickness of the crop;
A second transport roller portion provided on the downstream side of the first transport roller portion and provided with a fixed roller and a variable roller for separating the transport gap width according to the thickness of the crop;
An interlocking mechanism is provided to interlock and separate the transport clearance width of the second transport roller portion when the transport clearance width of the first transport roller portion is separated.
The interlocking mechanism
A first connecting member configured to rotate the variable roller of the first conveyance roller unit around the fixed roller in the second conveyance roller unit;
A second connecting member for rotating the variable roller of the second conveyance roller unit around the fixed roller of the first conveyance roller unit;
A link member connecting the first connection member and the second connection member;
When the variable roller of the first conveyance roller portion is rotated in the separation direction by the first connection member, the variable roller of the second conveyance roller portion is separated by the second connection member by the link member. Crop shredding device designed to displace. In the connection portion between the link member and the first connection member or the second connection member so that the transfer gap width of the first transfer roller portion can be reduced while the transfer gap width of the second transfer roller portion is increased. The crop shredding device according to claim 1, wherein the link member is connected by providing an elongated hole.

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